Phone holder made for the Oneplus 6T, made for the phone using the stock cover. And designed to allow using strips of the soft part of velcro (heavy duty) to line the inside so as to not scratch the phone. There should be enough tolerance to use other slim phone cases as well.
Two versions, one that has a 12 degree tilt and one that has no tilt.
Printed with PETG at .24mm with 35% infill.
Edit (11/16/18): added 2 tight fitting versions that don't require any velcro lining. Should fit the 6T with the stock TPU cover.